BK Acne Star Patch — 1 Sachet / 12 Star-Shaped Patches, Hyaluronic Acid + Salicylic Acid + Niacinamide
One hermetically sealed sachet of BK Acne Star Patch — 12 star-shaped hydrocolloid acne patches, 12mm diameter. The hydrocolloid matrix draws out acne fluid and creates a protective barrier against bacteria and contaminants. Active formula: Salicylic Acid against acne bacteria, Sodium Hyaluronate for a moist healing environment, Niacinamide against post-acne marks, Madecassoside for inflammation relief. Waterproof with ultra-thin edges — invisible under makeup. Made in Korea.
Format — One Individual Sachet
Sold as individual sachets for convenience: try one before buying in larger quantity. Each sachet is hermetically sealed and contains 12 patches. BK Acne Star Patch is manufactured in Korea using Korean hydrocolloid technology and is available at Watsons Thailand. Thailand FDA: 66-2-3-2-0014972. Direct import, authentic brand product.
How the Star Hydrocolloid Patch Works
Hydrocolloid is a polymer matrix that activates on contact with the moist blemish surface and absorbs fluid. The patch gradually turns white — the visual indicator that it is working. The star shape ensures tighter adhesion around the full blemish perimeter: the points create additional fixation and reduce edge lifting during facial movement. Simultaneously the patch forms a physical barrier — bacteria and pollutants cannot penetrate.
Active Ingredients
- Salicylic Acid — suppresses acne-causing bacteria within the patch; dissolves pore blockages and prevents inflammation from spreading to surrounding skin
- Sodium Hyaluronate — creates and sustains an optimal moist healing environment; reduces scarring risk and post-inflammatory hyperpigmentation
- Niacinamide (Vitamin B3) — fades red post-acne marks, regulates sebum in the blemish zone, reinforces the skin barrier
- Madecassoside — bioactive Centella Asiatica component; reduces inflammatory redness and accelerates tissue recovery
- Hydrocolloid — the core matrix; absorbs acne exudate, forms a moist healing environment, mechanically isolates the blemish
Full Ingredient List (INCI)
Styrene/Isoprene Copolymer, Polyisobutene, Cellulose Gum, Sodium Hyaluronate, Salicylic Acid, Niacinamide, Madecassoside, Hydrocolloid.
Product Specifications
- Brand: BK Acne
- Product: Acne Star Patch
- Country of Origin: South Korea
- Selling Format: 1 sachet
- Contents per Sachet: 12 patches
- Patch Shape: Star
- Diameter: 12 mm
- Thailand FDA: 66-2-3-2-0014972
- Skin Type: Acne-prone, sensitive
- Waterproof: Yes
- Under Makeup: Yes (ultra-thin edges)
- Per Patch Usage: Single use
How to Use
- Thoroughly cleanse skin and dry completely.
- Peel the patch from its backing film.
- Apply to the blemish and press gently for 5–10 seconds until firmly adhered.
- Wear for 6–8 hours or overnight. Can be applied twice daily — morning and evening.
- A whitened patch signals it is ready to be replaced.
Precautions
For external use only. Do not apply to open wounds or infected skin. Single use per patch. Use immediately after opening. If allergic reaction occurs, remove immediately and consult a dermatologist. Do not use if sensitive to adhesive plasters or niacinamide. Store in a dry place at room temperature away from direct sunlight. Keep out of reach of children. Do not ingest.
Frequently Asked Questions (FAQ)
How many patches are in one sachet?
One sachet contains 12 patches of 12mm diameter.
When should I remove the patch?
When the patch turns white or milky — the hydrocolloid has absorbed the acne fluid. Typically 6–8 hours. Can be left overnight.
Can makeup be applied over the patch?
Yes. Ultra-thin edges provide a smooth skin transition — foundation or powder can be applied without a visible outline.
Why is the star shape better than round?
The star points create additional fixation around the blemish perimeter — the patch holds more firmly during facial movement and resists edge lifting.
Is this an authentic BK product?
Yes. Thailand FDA: 66-2-3-2-0014972. Direct import from Thailand, authentic BK brand product.










